Multi-code OBD2 diagnosis
Enter all the codes your scanner showed, not just the first one. We give you the overall severity, whether you can keep driving, the order in which to check them and how they relate to each other.
Summary
- Overall severity
- High
- Can I keep driving?
- Yes, but with caution
- Estimated cost
- $100 to $1,200
- Codes analyzed
- 1 of 1
The order below is the recommended one: first the codes that can cause the others. After each repair, clear the codes and check which ones come back.
Order of inspection
P0946 Hydraulic Pump Relay Circuit Range/Performance High
The P0946 code means the hydraulic pump relay responds electrically, but the result is not what the computer expects. It can lead to a loss of hydraulic pressure. The fault is often mechanical or hydraulic, so a multimeter alone will not find it.